200926518 九、發明說明： 【發明所屬之技術領域】 本發明係種行動通訊裝置天線 有相合式饋入之行動通訊裝置天線。寻別疋種具 【先前技術】 無線通訊的蓬勃發展，使得各式各樣的無線通訊 產，斷的進步與出現’其中行動通訊裝置的縮小 ❹:都疋非常重要的研究課題。在現有的行動通訊裝置 ^天線尺寸要達龍小㈣目的，Μ抑介f材料的 特性以及婉蜒共振路徑來達成，不過這兩種方法，因天線 所激發的共振模態仍主要為四分之一波長共振，天線體積 的縮小化是有限的，如台灣專利公告號第49〇娜號“雙頻 倒F形平板天線及其輻射金屬片，，，其揭示一種使用四分 之一波長共振之内藏式手機天線即為一例。 ❹為了解決以上的問題’我們提出—種適祕行動通訊 裝置的麵合式饋入天線設計，涵蓋GSM(89〇〜娜卿、 (1710 1880MHZ)、pcs (1850 〜1990MHZ)及 uMTs^o 〜2170廳）之通訊頻帶的需求，而此設計是由-單一天線 達成兩個共振模態的寬頻操作，其中第一共振模態（較低 共振模態）主要是利用輕合式饋入來達成八分之一共振模 態’使得天線的尺寸大幅降低，且天線結構簡單易於印刷 或㈣在介質基板上，使得製作成本低廉’及因佔據手機 内工間較小’增加了其他元件可運用的空間，故本發明 200926518 天線適用於行動通訊裝置的需求。 【發明内容】 如上所述’本發明之目的在於提供合式饋入行 動通訊裝置天線設計，其不僅可以涵蓋刪、⑽、略 、碰TS頻帶之操作，_也達_小化之功效，因此本 發明天線相當適合應用於行動通訊裝置中。 ❹ 本發明天線，包含：一電路板；一接地面，位於該電 路板之-表面上，具有-短路點，且該短路點位於該接地 面之-邊緣；-輻射金屬部，係由一單一金屬片沖壓或切 割而成’亦可以使用印刷或姓刻技術形成於該電路板上’ 該輻射金屬部並具有-短路點，靠近該接地面之一邊緣附 近’ -短路金屬部，係由一單一金屬片沖壓或切割而成， 亦可以使用印刷或餘刻技術形成於該電路板上，其一端電 氣連接至該輻射金屬部之短路點，另一端電氣連接至該接 地面之短路點，·一饋入金屬部，係由 ❹於咳雷踗柘，“ 由p刷或蝕刻技術形成 於=路板上，包含··一第一饋入金屬部，位於該電路板 兮雷:面上且具有一饋入點；一第二饋入金屬部，位於 該電路板與該第一饋入金屬部相對應之另一表面上，且其 二至該輻射金屬部；及一饋入信號源，位於該饋二 點與該接地面之間。 S項發明天線中’我們使用耗合式饋入來降低第- 二共振模態）的實部阻抗值，並調整饋 金屬敎尺寸來有效地增加電容性，以降低第一共振模 200926518 態（八分之一波長共振模態）之電感性，使得八分之一波 長共振頻率點附近額外增加了天線輸入阻抗之虛部零點， 再藉由適當地調整該短路金屬部的尺寸，即可達到良好的 阻抗匹配，使得該輻射金屬部激發第一共振模態（八分之 一波長共振模態）以及第二共振模態（四分之一波長共振 .模態），其中，第一共振模態為一較低操作頻帶，可以涵 蓋無線廣域網路（WWAN)所需之全球行動通訊系統（GSM， * 890〜960MHz)之頻帶，而第二共振模態可以涵蓋數位通訊 ❹系統（DCS，1710〜1880 MHz)、個人通訊服務系統pcs，185〇〜 1990 MHz)及第三代行動通訊（UMTS，192〇〜217〇 mhz)之三個 頻帶。 【實施方式】 第1圖為本發明天線之一實施例結構圖，包含：一電 路板11 ; 一接地面12 ’位於該電路板u之一表面上，具有 一短路點121，且該短路點121位於該接地面12之一邊緣 120，一輻射金屬部13，係由一單一金屬片沖壓或切割而 成’亦可以使用印刷或钱刻技術形成於該電路板U上，該 輕射金屬部13並具有一短路點132，靠近該接地面12之一 邊緣120附近；一短路金屬部14，係由一單一金屬片沖壓 或切割而成，亦可以使用印刷或蝕刻技術形成於該電路板 11上’其一端電氣連接至該輻射金屬部13之短路點132， 另一端電氣連接至該接地面12之短路點121 ; —饋入金屬 8 200926518 部15 ’係由印刷或蝕刻技術形成於該電路板丨丨上包含： 一第一饋入金屬部151 ，位於該電路板u之一表面上，且 具有一饋入點152 ; —第二饋入金屬部153 ,位於該電路 板11與該第一饋入金屬部151相對應之另一表面上，且其 一端連接至該輻射金屬部13 ;及一饋入信號源16，位於該 .饋入點152與該接地面12之間。 * i 第2圖為本發明天線之實施例1的返回損失量測結果 ❹。在實施例1中選擇下列尺寸進行量測：電路板n長度約 為116mm、寬度約為60mm ;接地面12長度約為1〇〇_、 寬度約為60mm ;輻射金屬部13長度約為犯_(約為9〇〇 MHz之八分之一波長）、寬度約為lmm :短路金屬部μ長 度約為21mm、寬度約為丨^ ;饋入金屬部15，包含：: $ 一饋入金屬部15ι長度約為10mm，寬度約為〇5mm ; -苐二饋入金屬部153長度約為9mm、寬度約為2_。由 所得實驗結果，在6dB返回損失的定義下，其第一共振模 .©態21足以涵蓋無線廣域網路（WWAN)之刪頻帶，而第二 共振模態22涵蓋DCS、PCS及UMTS之三個頻帶。 第3圖、第4圖、第5圖及第6圖為本發明天線 施例分別於925、1795、1920及期驗之輕射場型圖， ^天線增益分別為0.19、U5、19〇及265犯卜由所得之 結果，本發明天線無論低頻操作頻帶或高頻 符合行動通訊產品的使用需求。 貝帶白％ 9 200926518 .第7圖為本發明天線之第—其他實施例7結構圖，包 3 ·電路板11，一接地面12，位於該電路板之一表面上 ’具有一紐路點121 ，且該短路點121位於該接地面之一 邊緣，-介質基板70，位於該接地面12之一邊緣12〇處， 且大致垂直於該電路板n ; 一輕射金屬部乃，係由印刷或 .㈣技術形成於該介質基板7〇上，且具有一短路點乃2 ; •紐路金屬部74 ’係由印刷或#刻技術形成於該介質基板 '7〇上，其一端電氣連接至該輻射金屬部73之短路點732， 另鳊電氣連接至該接地面12之短路點121 ; 一饋入金屬 部73，包含：一第一饋入金屬部751，位於該介質基板7〇 之一表面上，且具有一饋入點752，·一第二饋入金屬部 753 ，位於該介質基板70與該第一饋入金屬部751相對應 之一表面上，且其一端連接至該輻射金屬部73 ;及一饋 入仏號源16，位於該饋入點752與該接地面12之間。實施 例7亦能獲得與實施例1近似的結果，符合行動通訊產品 β的使用需求。 第8圖為本發明天線之第二其他實施例8結構圖，其 中該介質基板80具有一次以上之折彎8〇1，8〇2，可以藉此縮 小天$之體積，其他天線結構與實施例1及7相似。本發 明之κ施例8亦能獲得與實施例丨近似的結果，符合行動 通訊產品的使用需求。 以上說明中所述之實施例僅為說明本發明之原理及其 力效而非限制本發明。因此，習於此技術之人士可再不 200926518 違背本發明之精神對上述實施例進行修改及變化。本發明 之權利範圍應如後述之申請專利範圍所列。200926518 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a mobile communication device antenna having a cooperatively fed mobile communication device antenna. Finding 疋 疋 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 In the existing mobile communication device ^ antenna size to reach the dragon (four) purpose, to suppress the characteristics of the material f and the 婉蜒 resonance path to achieve, but the two methods, the resonant mode excited by the antenna is still mainly four points One wavelength resonance, the reduction of the antenna volume is limited, such as the Taiwan Patent Publication No. 49 〇na "Double Frequency Inverted F-shaped Panel Antenna and Its Radiation Metal Sheet," which discloses a use of quarter-wave resonance The built-in mobile phone antenna is an example. ❹ In order to solve the above problems, we propose a face-to-face feed antenna design for a mobile communication device, covering GSM (89〇~Naqing, (1710 1880MHZ), pcs ( 1850 ~ 1990MHZ) and uMTs^o ~ 2170 Hall) the communication band requirements, and this design is achieved by a single antenna to achieve two resonant modes of broadband operation, where the first resonant mode (lower resonant mode) is mainly It is the use of light-weight feeding to achieve one-eighth resonance mode', which makes the size of the antenna greatly reduced, and the antenna structure is simple and easy to print or (4) on the dielectric substrate, making the production cost low' and The small internal space of the mobile phone increases the space available for other components, so the 200926518 antenna of the present invention is suitable for the needs of the mobile communication device. [Invention] As described above, the object of the present invention is to provide a combined feed antenna for mobile communication devices. The design can not only cover the operation of deleting, (10), slightly touching the TS band, but also achieving the effect of _ smalling. Therefore, the antenna of the present invention is quite suitable for use in a mobile communication device. ❹ The antenna of the present invention comprises: a circuit board a ground plane on the surface of the circuit board having a short-circuit point at the edge of the ground plane; and a radiating metal portion stamped or cut from a single metal sheet Formed on the circuit board using a printing or surname technique 'The radiant metal portion has a short-circuit point near the edge of one of the ground planes' - the short-circuited metal portion is stamped or cut from a single piece of metal, also It can be formed on the circuit board using printing or engraving techniques, one end of which is electrically connected to the short-circuit point of the radiating metal portion, and the other end is electrically connected to the connection The short-circuit point of the surface, a feed into the metal part, is due to the cough and thunder, "formed by the p-brush or etching technique on the = road board, including a first feeding metal part, located on the circuit board Thunder: a feed point on the surface; a second feed metal portion on the other surface of the circuit board corresponding to the first feed metal portion, and two to the radiating metal portion; A feed signal source is located between the feed point and the ground plane. In the S antenna of the invention, we use the consumable feed to reduce the real impedance value of the first-second resonance mode, and adjust the size of the feed metal to effectively increase the capacitance to reduce the first resonance mode 200926518 state (eight The inductivity of the one-wavelength resonance mode) increases the imaginary zero point of the antenna input impedance near the one-eighth wavelength resonance frequency point, and can be achieved by appropriately adjusting the size of the short-circuit metal portion. Impedance matching such that the radiating metal portion excites a first resonant mode (an eighth-wavelength resonant mode) and a second resonant mode (a quarter-wave resonant. mode), wherein the first resonant mode For a lower operating band, the band of the global mobile communication system (GSM, * 890~960MHz) required for the wireless wide area network (WWAN) can be covered, and the second resonant mode can cover the digital communication system (DCS, 1710~) 1880 MHz), personal communication service system pcs, 185〇~1990 MHz) and 3rd generation mobile communication (UMTS, 192〇~217〇mhz). [Embodiment] FIG. 1 is a structural diagram of an embodiment of an antenna according to the present invention, comprising: a circuit board 11; a ground plane 12' is located on a surface of the circuit board u, has a short-circuit point 121, and the short-circuit point 121 is located at one edge 120 of the grounding surface 12, and a radiant metal portion 13 is stamped or cut from a single metal sheet. It can also be formed on the circuit board U by using printing or engraving techniques. 13 has a short-circuit point 132 near the edge 120 of the ground plane 12; a short-circuited metal portion 14 is stamped or cut from a single piece of metal, and may also be formed on the board 11 using printing or etching techniques. The upper end is electrically connected to the short-circuit point 132 of the radiating metal portion 13, and the other end is electrically connected to the short-circuit point 121 of the ground plane 12; - the feed metal 8 200926518 portion 15' is formed by the printing or etching technique on the circuit The board includes: a first feeding metal portion 151 located on a surface of the circuit board u and having a feeding point 152; a second feeding metal portion 153 located on the circuit board 11 and the first a feed into the metal portion 15 1 corresponds to the other surface, and one end thereof is connected to the radiating metal portion 13; and a feed signal source 16 is located between the feed point 152 and the ground plane 12. * i Fig. 2 is a return loss measurement result 实施 of the first embodiment of the antenna of the present invention. In the first embodiment, the following dimensions are selected for measurement: the length of the circuit board n is about 116 mm and the width is about 60 mm; the length of the ground plane 12 is about 1 〇〇, and the width is about 60 mm; the length of the radiating metal portion 13 is about _ (about one-eighth wavelength of 9〇〇MHz), width is about lmm: short-circuit metal portion μ length is about 21mm, width is about 丨^; feeding metal portion 15, including:: a feeding metal part The length of 15ι is about 10 mm, and the width is about mm5 mm; the length of the feed metal portion 153 is about 9 mm and the width is about 2 mm. From the experimental results obtained, under the definition of 6dB return loss, its first resonant mode. State 21 is sufficient to cover the band of the wireless wide area network (WWAN), and the second resonant mode 22 covers three of DCS, PCS and UMTS. frequency band. 3, 4, 5, and 6 are light field patterns of the antennas of the present invention in 925, 1795, and 1920, respectively, and the antenna gains are 0.19, U5, 19, and 265, respectively. As a result of the discretion, the antenna of the present invention conforms to the use requirements of the mobile communication product regardless of the low frequency operation band or the high frequency. Bay Belt White % 9 200926518 . Fig. 7 is a block diagram of the antenna of the present invention - other embodiment 7, package 3 · circuit board 11, a ground plane 12, located on one surface of the circuit board 'has a point of the road 121, and the short-circuit point 121 is located at one edge of the ground plane, the dielectric substrate 70 is located at one edge 12〇 of the ground plane 12, and is substantially perpendicular to the circuit board n; a light-emitting metal portion is The printing or (4) technology is formed on the dielectric substrate 7〇 and has a short-circuit point 2; • The New Zealand metal portion 74' is formed on the dielectric substrate '7〇 by printing or #刻技术, one end of which is electrically connected The short-circuit point 732 to the radiant metal portion 73 is electrically connected to the short-circuit point 121 of the ground plane 12; a feed-in metal portion 73 includes: a first feed-in metal portion 751 located on the dielectric substrate 7 a surface, and having a feed point 752, a second feed metal portion 753 on a surface of the dielectric substrate 70 corresponding to the first feed metal portion 751, and one end of which is connected to the radiation a metal portion 73; and a feed source yoke 16 located at the feed point 752 Between the surface 12. The result of approximation to the embodiment 1 can also be obtained in the embodiment 7, which is in accordance with the use requirement of the mobile communication product β. Figure 8 is a structural view of a second embodiment 8 of the antenna of the present invention, wherein the dielectric substrate 80 has more than one bend 8 〇 1, 8 〇 2, thereby reducing the volume of the sky, and other antenna structures and implementations. Examples 1 and 7 are similar. The κ embodiment 8 of the present invention can also obtain results similar to those of the embodiment, and is in line with the use requirements of the mobile communication product. The embodiments described in the above description are merely illustrative of the principles of the invention and its advantages and limitations. Therefore, those skilled in the art can no longer modify and change the above embodiments in accordance with the spirit of the present invention. The scope of the invention should be as set forth in the appended claims.
11 200926518 【圖式簡單說明】 第1圖為本發明天線一實施例結構圖。 第2圖為本發明天線一實施例之返回損失量測結果。 第3圖為本發明天線一實施例於925 MHz之輻射場型圖。 第4圖為本發明天線一實施例於1795 mhz之輻射場型圖。 .第5圖為本發明天線一實施例於1920 MHz之輻射場型圖。 .第6圖為本發明天線一實施例於2045 MHz之輻射場型圖。 第7圖為本發明天線之第一其他實施例結構圖。 ❹第8圖為本發明天線之第二其他實施例結構圖。 【主要元件符號說明】 7 8 11 12 120 121 13, 73, 83 131，731，831 132, 732, 832 14, 74, 84 15, 75, 85 151,751, 851 本發明天線一實施例 本發明天線之第一其他實施例 本發明天線之第二其他實施例 系統電路板 接地面 接地面之一邊緣 接地面之短路點 輻射金屬部 輻射金屬部之起始端 輕射金屬部之短路點 短路金屬部 饋入金屬部 :第一饋入金屬部 12 200926518 152, 752,852 153,753,853 16 21 22 70, 80 ❹ 801,802 :饋入點 :第二饋入金屬部 :饋入信號源 :第一共振模態 :第二共振模態 :介質基板 :折彎 1311 200926518 [Simplified description of the drawings] Fig. 1 is a structural view showing an embodiment of an antenna according to the present invention. Figure 2 is a graph showing the return loss measurement of an embodiment of the antenna of the present invention. Figure 3 is a radiation pattern diagram of an embodiment of the antenna of the present invention at 925 MHz. Figure 4 is a radiation pattern diagram of an embodiment of the antenna of the present invention at 1795 mhz. Figure 5 is a radiation pattern diagram of an embodiment of the antenna of the present invention at 1920 MHz. Figure 6 is a radiation pattern diagram of an embodiment of the antenna of the present invention at 2045 MHz. Figure 7 is a structural view of a first other embodiment of the antenna of the present invention. Fig. 8 is a structural view showing a second embodiment of the antenna of the present invention. [Description of main component symbols] 7 8 11 12 120 121 13, 73, 83 131, 731, 831 132, 732, 832 14, 74, 84 15, 75, 85 151, 751, 851 An antenna of the present invention is an embodiment of the antenna of the present invention The first other embodiment of the second embodiment of the antenna of the present invention is a short circuit point of the grounding surface of the grounding surface of the grounding surface of the system circuit board, the short-circuit point of the radiating metal portion of the metal portion, the short-circuit point of the light-emitting metal portion, the short-circuit metal portion, the metal feeding portion Part: First feeding metal part 12 200926518 152, 752, 852 153, 753, 853 16 21 22 70, 80 ❹ 801, 802: Feeding point: second feeding metal part: feeding signal source: first resonance mode: second resonance mode : dielectric substrate: bend 13